Bibliographical Notices. 



215 



vocal situations do really indicate the lines of ancient 

 beaches. 



On the north or highest of the two points of Williamlaw, 

 and near the summit, are two broad indistinct terraces, whose 

 surfaces slope considerably towards the southern or lowest 

 point, and also to the west. The crest between the two points 

 is a succession of low eminences and intermediate furrows, 

 which have no connexion with any of the terraces, but are 

 formed of the basset edges of the harder beds. As the dip 

 and strike of these correspond in the main with those of the 

 slanting ridges below, and as they are separated by similar 

 smooth grassy hollows, there can be no doubt but the cause 

 assigned by Mr. Kemp for the latter, is the true one. 



At the south foot of Williamlaw, on the opposite bank of 

 the Gala, is a broad level grassy plain, formed of diluvium at 

 the time the whole valley was under water, and subsequently 

 cut through by the existing stream. It reminded me strongly 

 of the true terraces near the head of Glen Roy. 



Having now stated, as clearly as I can, the observations that 

 occurred to me on a hasty view of these terraces, I have only 

 to express a hope that more competent geologists may be in- 

 duced to examine them in greater detail. Whether the theory 

 proposed by Mr. Kemp be the true one or not, the merit of 

 having first discovered, and then worked them out with such 

 ability and perseverance, will ever be his own. No one will 

 rejoice more than myself to see my objections answered, and 

 a cause assigned that shall explain the difficulties and harmo- 

 nize with all existing appearances. Nor is this all ; the com- 

 plete explanation of any set of natural phaenomena, lessens 

 the difficulty of comprehending others, still obscure, to which 

 they are allied ; and is another step in advance towards the 

 future solution of the grand problem, the aggregate causes 

 that have produced the existing state of things upon our 

 globe. 



J. E. Bowman. 



Manchester, October 10, 1840. 



BIBLIOGRAPHICAL NOTICES. 



The Flora of Yorkshire. By Henry Baines, Sub-curator to the York- 

 shire Philosophical Society. 8vo. pp. 160. London, Longman 

 and Co. ; Leyland and Son, Halifax. 



We have here a very interesting work — the Flora of an important 

 district, carefully investigated by an industrious and intelligent prac- 

 tical botanist, who has been enabled, by peculiar circumstances, to 

 combine with his own the valuable labours of others to a very 

 unusual extent. A preliminary essay, by Professor Phillips, on the 

 Physical Geography of Yorkshire, in relation to the distribution of 



